Home / 190,139.04-262,388.68-105,254.28

Finding the Fourth Proportional to 190,139.04, 262,388.68 and 105,254.28

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Solution

The fourth proportional to 190,139.04, 262,388.68 and 105,254.28 is: 145,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,139.04 : 262,388.68 = 105,254.28 : x
  2. Step 2: Convert to fraction form
    190,139.04/262,388.68 = 105,254.28/x
  3. Step 3: Cross multiply
    190,139.04x = 262,388.68 × 105,254.28
  4. Step 4: Simplify right side
    190,139.04x = 27,617,531,593.55
  5. Step 5: Solve for x
    x = 27,617,531,593.55/190,139.04
  6. Step 6: Final answer
    x = 145,249.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.